The Oldenburg G 7 steam locomotive was a German 0-8-0 locomotive produced for the Grand Duchy of Oldenburg State Railways (Großherzoglich Oldenburgische Eisenbahn). It was an eight-coupled engine, intended for heavy goods train duties, and was based on the Prussian G 7. It had a 1,660 mm diameter boiler located 2,820 mm above the top of the rails in the plate frame, and was equipped with a single Walschaerts valve gear as well as a Lentz valve gear. Thirteen were taken over by the Deutsche Reichsbahn, grouped into DRG Class 55.62 and given numbers 55 6201–55 6213.
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Quick Facts Oldenburg G 7 DRG Class 55.62, Type and origin ...
Oldenburg G 7 DRG Class 55.62 |
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An ex-Prussian G 7.1, no. 55 669, in Potsdam on 17 May 1993 |
Type and origin |
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Build date | 1912–1918 |
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Total produced | 22 |
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Specifications |
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Configuration:
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• Whyte | 0-8-0 |
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Driver dia. | 1,350 mm (4 ft 5 in) |
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Adhesive weight | 58.6 t (57.7 long tons; 64.6 short tons) |
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Service weight | 58.6 t (57.7 long tons; 64.6 short tons) |
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Boiler pressure | 12 kgf/cm2 (1.18 MPa; 171 lbf/in2) |
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Heating surface: | |
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• Firebox | 2.23 m2 (24.0 sq ft) |
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• Evaporative | 180.10 m2 (1,938.6 sq ft) |
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Cylinders | 2, compound |
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High-pressure cylinder | 500 mm (19+11⁄16 in) |
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Low-pressure cylinder | 750 mm (29+1⁄2 in) |
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Piston stroke | 660 mm (26 in) |
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Performance figures |
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Maximum speed | 45 km/h (28 mph) |
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Career |
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Numbers | - GOE: 231–235, 246–247, 251–255, 259–263, 272–276
- DRG: 55 6201–6213
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